Throwing around arbitrary figures won't get us anywhere.  Numbers of where Bitcoin could go after the ETF are generally based on weak speculation.  Frankly, it could go nearly anywhere.  However, maybe the ETF will result in a rise of Bitcoin but I think that people are viewing this as an event that will just instantly throw Bitcoin into the stars.  

It'll take time and time to build legitimacy.  The volatility of Bitcoin right now based on that event might even stop Bitcoin getting the ETF as it wouldn't be seen as legitimate or reliable.